Cylinder steel pipe is suitable for petroleum, hydraulic cylinder, mechanical processing, thick-walled pipeline, chemical industry, electric power, boiler industry, high temperature resistance, low temperature resistance, corrosion resistance seamless steel pipe, suitable for petroleum, aviation, smelting, food, water conservancy, electric power , Chemical, chemical, chemical fiber, medical machinery and other industries.

advantage

1. Improve the surface roughness , the roughness can basically reach Ra≤0.08µm.

2. Correct the roundness, the ellipticity can be ≤0.01mm.

3. Improve surface hardness, eliminate stress and deformation, and increase hardness by HV≥4°

4. There is a residual stress layer after processing, which improves the fatigue strength by 30%.

5. Improve the quality of fit, reduce wear, and prolong the service life of parts, but the processing cost of parts is reduced.

main difference

The difference between cylinder pipe and seamless steel pipe

1. The main feature of seamless steel pipe is that it has no welded seams and can withstand greater pressure. Products can be very rough as-cast or cold drawn.

2. The cylinder tube is a product that has appeared in recent years, mainly because the inner hole and outer wall have strict tolerances and roughness.

Features of the cylinder tube

1. The outer diameter is smaller.

2. High precision and small batch production

3. The cold drawn finished product has high precision and good surface quality.

4. The cross-sectional area of the steel pipe is more complicated.

5. The performance of the steel pipe is better and the metal is denser.

The difference after hot rolling cylinder tube

The hot-rolled cylinder tube is made of continuous casting round tube billet slab or pre-rolled slab as raw material, heated in a walking furnace, descaled by high-pressure water, and then enters the rough rolling mill. Computer-controlled rolling is implemented, and after final rolling, it is cooled by laminar flow and coiled by a coiler to become a straight hair coil. The head and tail of the straight hair curler are often tongue-shaped and fish-tail-shaped, with poor thickness and width accuracy, and the edges often have defects such as wave shape, folded edge, and tower shape. The coil weight is heavier, and the inner diameter of the steel coil is 760mm. After the straight hair coil is processed by cutting head, tail cutting, edge trimming and multi-pass straightening, leveling and other finishing lines, it is then cut or re-coiled to become: hot- rolled steel plate , flat hot-rolled steel coil, longitudinal Tape and other products. If the hot-rolled finishing coil is pickled to remove the oxide scale and oiled, it becomes a hot-rolled acid-washed coil.

Common materials

10# 0.07~0.13 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035

20# 0.17~0.23 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035

35# 0.32~0.39 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035

45# 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035

40cr 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.08~1.10

25Mn 0.22~0.2 0.17~0.37 0.70~1.00 ≤0.035 ≤0.035 ≤0.25

37Mn5 0.30~0.39 0.15~0.30 1.20~1.50 ≤0.015 ≤0.020

Stainless Steel Cylinder Pipe

The use of stainless steel material for the cylinder tube has the characteristics of light product design and long service life.

Because stainless steel has high strength and corrosion resistance, compared with aluminum, iron and other materials, due to its high strength and non-magnetic properties, it can be designed to be lighter and thinner than aluminum and iron, which can reduce the size and weight of the product, and is used for more mini cylinders . It is the first choice for lightweight automation equipment.

The inner and outer roughness of the stainless steel cylinder tube can reach Ra0.2-0.4μω, the inner and outer diameter tolerance zone can reach 0.03mm; the specifications are from Φ3--Φ108mm, and the wall thickness is 0.2-3mm.